[Feature Request] Is it possible to append an arbitrary string to DatePicker input?

### Existing Component
Yes

### Component Name
DatePicker

### Description
DatePicker is working great, but I would like to append a custom-formatted time zone string to the date, so instead of showing

2022/10/10

it should show

2022/10/10 (EST)

Where (EST) is not considered as part of the bound Date value